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Individual Differences in Adult Decision-Making Competence
journal contribution
posted on 2007-05-01, 00:00 authored by Wändi Bruine de Bruin, Andrew M Parker, Baruch FischhoffBaruch FischhoffThe authors evaluated the reliability and validity of a set of 7 behavioral decision-making tasks,
measuring different aspects of the decision-making process. The tasks were administered to individuals
from diverse populations. Participants showed relatively consistent performance within and across the 7
tasks, which were then aggregated into an Adult Decision-Making Competence (A-DMC) index that
showed good reliability. The validity of the 7 tasks and of overall A-DMC emerges in significant
relationships with measures of socioeconomic status, cognitive ability, and decision-making styles.
Participants who performed better on the A-DMC were less likely to report negative life events indicative
of poor decision making, as measured by the Decision Outcomes Inventory. Significant predictive
validity remains when controlling for demographic measures, measures of cognitive ability, and constructive
decision-making styles. Thus, A-DMC appears to be a distinct construct relevant to adults’
real-world decisions.